We almost all have our breaking points with shows, where some grating flaw finally overwhelms our enjoyment of the series. For some, that point probably arrived at the end of last week's episode when Claire turned herself over to the Followers -- because, surely, that's bound to end well. But for those who have found it increasingly hard to invest in a cat-and-mouse game where the criminal cat is always 10 steps ahead of the moronic mice, the dividing line came when the last-man-standing marshal guarding Claire decided to make that last stand behind a flimsy hotel door, despite his security camera-acquired knowledge that the bad guys had high-powered weapons. It's hard to say what was more ridiculous: that he just waited to get blasted or that the show actually tried to sell his death as a surprise. It's bad enough to continually undercut your characters, but to do so while simultaneously insulting viewers' intelligence is to invite those viewers to exit.

Castle | ABC, 10 ET/PT

By now, Castle fans know that Rick is over-dramatic and has a fondness for all forms of criminal fiction. So it should be no great surprise that the show's 100th episode traps him at home with a broken leg – and throws him into a Rear Window murder.